steeling



Feb. 25, 1930,

J. J. STEHLING REVOLVING SCREEN AND CONVEYER Filed Se pt. l5, 1927 2 Sheets-Sheet l ENUM i n NQ W INVENTOR.

J; B 'Y ATTORNEYS,

Feb. 25, 1930. J. J. sTEHLlNG REVOLVING SCREEN AND CONVEYER Filed Sept. 15, 1927 2 Sheets-Sheet 2 M A TTORNEYS.

Patented Feb. 25, 1930 man1 UNITEDSTATES PATENT' ossi fgJOsEPnJ. STEELING, or MILWAUKEE, wIscoNsrN, AssIeNoE To cHAs. II. STEIILING oo., E MILWAUKEE, w-IscoNsIN, A CORPORATION OE WISCONSIN r`frREvoIfvINcr scEEEN AND CONVEYEE.

p 1 Appication mea september 15, 1927. serial No. 219,773.

This invention relates to improvements in revolving screens and conveyors, particularly adapted for use in connection withthe disposalf of sewageV from tanneries and the like; '5 The sewage from tanneries contains large `amounts of solid animal matter as flesh, skin, hair, etc., and as laws prevent the disposal of such matter with they sewage, means must be provided for removing from the liquid rsew-yy agethe solid .matter referred to before the liquid'sewagepasses from the building into thel municipal system. n Y .y

It is, therefore, the primary obj ect of the s present invention to provide a sewage screen and conveyer which will eliminatethe solid matter from the liquid sewage.

A further objectof the invention is to provide afsewage screen and conveyer which will Y remove solid matter from liquid sewage and convey it to a desired position for convenient handling.V u y. i f

` A'further obj ect `ofthe inventionis to provide a device ofthe 'class ldescribed having means for automatically cleaning the conveyerand keeping it freeiof solid matter, beyond the point where the load should be delivered,

solid'matter ofjthis class :being very tena-y further obj ect ofithe invention is to pro-` vide a revolving screen and yconveyer which is of yvery simple construction, is strong and durable, is efficient inv Operation,V` and iswell adaptedfffor the purposes described.

With the above and other objects in view T352 the invention consists` of the improved revolving screen and conveyer, and its parts and combinations as set forth in the claims,

and all equivalents thereof.' Y In the accompanying drawings in which the 404 same reference characters indicate the same parts in both of the views.: l

Fig. 1 is a longitudinal sectional view through a drainage pit and the improved rei A volving screen and conveyer mounted there- 4`5fin, the view4 being indicated on line 1-1 of Fig. l2; and

Fig. 2 is a cross sectional View of the same indicated on line 2-2 of Fig. 1. y Referring now more particularly to the E@L drawings it will appear that'the numeral 5 indicates a waste or sewage disposal pit, such as is common in tanneries and the like.

rlhe pit is preferably formed of concrete and one end portion `thereof has a comparatively shallow compartment 8 defined by an off-set bottom portion 6 and a vertical partition 7 sec Fig. 1). One of the walls of the pit, adjacent the compartment 8, is provided with an opening 9 at a predetermined distance above the bottom 6, and said opening allows an inflow of sewage through suitable pipes. The partition 7 is also formed with a lower opening 10 which permits the flow of the sewage into a large compartment 11 of the pit formedhw'ith a rearwardly sloping bottom 12. The compartment 11 is divided longitudinally by a partition 13 which is formed with a U-shaped slot 14 to receive the bearing portion 15 ofk a revoluble screen 16. The screen 16 is mounted on a shaft 17 which carries a sprocket wheel18 .which may be connected bya chain vdrive with any source of power (not shown). The screen is so positioned that the sewage must pass therethrough to flow into thepit chamber 19 and hence, the solid matter will be'screened and only clear liquid willk enter the chamber 19y and will be discharged therefrom through an outlet opening 20. i n

Naturally, the solid matter will accumulate within thepit compartment 11 andan important feature of the invention resides in the means employed for removing the solid matter said compartment. For that purpose, ay conveyer is utilized having its lower end mounted within the rear lower portion of thepit compartment 11 and extending upwardly and outwardly of the pit.

The conveyer comprises a pair of supporting members 21 mounted above the pit and 9o carrying bearings 22 at their upper end portions in which is j ournaled a transverse shaftf- 23.,` Said shaft is drivenby a sprocket wheel 24 mounted on its end portion and adapted to carry achain drive (not shown). Also eeA f mounted fast on the shaft 23 inwardly of the supporting members 21 are a pair of spaced smaller sprocket wheels 25 over which` elongated endless chains eXtend. A pair of opposed lower bearings 27 are mounted in the* loo projecting fingers or pegs 33, the pegs of each to the opposed anglemembers the end por- Y tions of transverse bars 32 are secured. Each bar 32 is provided with a row of inwardly row terminating inwardly of the 'chains 26 so as not to interfere therewith.

The conveyer is provided with a peg cleaning or scraping member designated generally by the numeral 34 and mounted slightly below the upper end portion of the conveyer.

Said scraping member consists of a rod 35 revolubly mounted in brackets 36 carried by unright supports 37 and fast on said rod are a pair of spaced arms 38 connected at their outer end portions by a transverse scraping bar 39. As shown in Fig. 2 the: arms 38 are outwardly of the sides of the conve er chains 26 and as seen from Fig. l the scraping bar 39 overlies the under layer of the conveyer. The result is that when said conveyer travels in the direction of the arrow in Fig. l7V each row of pegs will engage the scraping bar and cause the scraping member to move pivotally upwardly along said pegs, cleaning the same, as shown in dotted lines, until it drops over the ends ofthe pegs to normal position for operation on the next row of bearings may be moved to take up slack in the conveyer.

In operation the sewage is screenedA as described and the conveyer loperates in the pit compartment containing the solid matter. l

seen that the improved revolving screen and conveyer is of very simpleV and novel con' struction, and is well adaptedfor the purpose described.

'What I claimv asmy invention is: Y Y

l. The combination with anv inclined elevator member, ofy a'plurality of fingers carried by said elevator, and pivotalmeans con-l nected with an upper portion of said elevatory for automatically cleaning said fingers and actuated by direct engagement with said finl gers. j e 4 2. A conveyer, comprising an inclined elevator member, a plurality of fingers carried by said elevator and arranged in rows trans n versely of the elevator for carrying solid material, and a scraping member pivot-ally mounted adjacent an upper portion of the elevator and having a scraping portion extending transversely of said elevator for engagement with said fingers, said scraping member being moved by engagement with the 1in-gers.`

3. The combination with Van inclined endless elevatormember, of a plurality of fingers carried by said elevator and arranged in rows transversely of the elevator Jfor carrying solid material, anda scraping member pivotally'mounted adjacent the elevator and Y having a scraping portion extending transversely of said elevator for engagement with said fingers,` said scraping member being moved Yby engagement withY the fingers and*V `A moving lengthwise of the same. j

4. The combination with a revoluble in-f clined endless elevator memberof aplurality i of rows of fingers carried by said elevator member'and a scraping member pivotally mounted'adjacent an outer portion of the ele--r ses vator member and having a transverse lol-adeA overlying a portion of theelevator memberV for engagement with rows of said fingers,

said scraping .member being moved by en- Y gagement with the fingers and moving lengthwise of the same. A

5. The combination with a revoluble, in-V clined vendless. elevator having an elongated longitudinal travel of a plurality of rows of lixed fingers carried by said elevator member and projecting` inwardly, and a scraping member pivotallymounted adjacent an outer portion of the elevator member and embracing a portion of the same and having a transn verse blade overlying an inner portion 'ofthe elevator member for engagement ,with` rows of said fingers, said scraping member being,V

movedbyengagementwith theflngers and being carriedthereby in scraping engagement lengthwise of the fingers. l v

In testimony whereof,-I aiiix my signature. JOSEPHeJ. STEHLING. f

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